Churn



improved churn.

UNITED STATES FATEN T OFFTCE.

JAMES H. DOUGHTY, OF ADAMSVILLE, OHIO.

ci-IURN. f y

Specification of Letters Patent No. 34,416, dated February 18, 1862.

To all whom t may concern:

Be it known that I, JAMES H. DoUGI-rrY, of Adamsville, in the county ofMuskingum and State of Ohio, have invented a new and useful Improvementin Ohurns; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to theaccompanying drawings, making part of this specication, in which- Figure1 is a vertical axial section of my Fig. 2, is a plan of the same withthe cover and dasher remo-ved. Fig. 3, is an underside view of the-baseof the inner cylinder hereinafter described.

Similar letters of reference indicate corresponding parts in the severalfigures.

The nature of the present invention consists in an improved combinationof devices to impart a vortical motion to t-he cream, subject all partsof it to equal and thorough agitation and gather the formed butter in acompact and solid mass.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction.

A is a tub or box provided with a cover B.

C is a lever fulcrumed to a standard D on the outside of the box A andcarrying the dasher rod E.

F F are two circular disks secured, the latter at the lower end and theformer toward the center of the rod E.

F2 is an annulus secured concentrically around the disk F by means ofrigid rods f2, depending from the upper disk F. The

space between the disk F and annulus F2, is suflicient to accommodate ashort metallic cylinder G which is secured by means 0f flanges g g g gto a base H of peculiar construction, which is screwed fast to thebottom of the churn. The base plate H is formed on top with a centralcavity I in which a square or other shaped, perforated valve J works.

z' z' c' are angular channels extending radially from the corners of thecavity I and turning at their outer ends to positions nearly tangentialwith the periphery of the base plate. The said channels excepting attheir outer ends are covered by the anges 9 g 9 9- K is a centralaperture extending from the cavity I completely through the base plate Hbut closed at its lower end by the said base plate being fixed to thebottom of the churn.

7c c if: are a series of curved channels formed in the under face of thebase plate H. The said channels extend from the cen` tral aperture K tothe circumference of the base plate, terminating in positions tangentialor nearly so with the periphery of the base plate but presenting inopposite directions to the upper channels i. The form of the lowerchannels c is more clearly shown in F ig. 3, which represents the baseplate inverted.

The operation of this churn is as follows: A reciprocating motion isimpartedr to the dasher E F F F2 f2. As it rises the cream flows freelyinward through the lower channels c up through the central aperture Kand raising the perforated valve J passes through and around it andfills the cylinder beneath the disk or pisto-n F. YAs the dasherdescends the valve J closes instantaneously and the cream is drivenforcibly out through the contracted channels i subjecting it to greatcompression and friction which breaking the globules, liberates theolein and results in the rapid formation of butter. The blue arrowsrepresent the direction in which the cream is drawn into the churn andthe red arrows the direction in which it is forced out, the arrows beingshown in dots, where they pass beneath superposed parts of the churn. Itwill be apparent that by reason of the opposite directions of the outerparts of the respective channels z' and lo the cream is alternatelydrawn and impelled in the same circular direction, which imparts to it arapid vortical or circular motion and thus causes all its parts to bepresented successively to the action of the dasher. The upper disk F andannulus or ring F2 operate upon the cream on the out-side of thecylinder G. The cream being taken into the cylinder, exclusively at thelower part, the butter as fast as formed collects in a mass at top andt0n F and valve J arranged and operating is preserved from any furtheragitation. substantially as and for the purposes set What I Claim asnew7 and desire to secure forth. by Letters Patent, is- 5 Thecombination of the channels i and f: Witnesses:

formed and arranged as described When JOHN WOLFORD, used in ConnectionWith the cylinder Gr pis- DAVID RICHARDSON.

` JAMES H. DOUGHTY.

